Answer:
The correct answer would be option - Metabolic specificity.
Explanation:
Metabolic specificity is related to the energy demand that occurred on the body.
It is one of the main causes that provides strength and condition of the body. It helps in increasing endurance and helps in the physiological changes take place in the body of the trainee.
Endurance and strength can be developed by regular training or exercise with a short period of the rest in between.
Thus, the correct answer is option - metabolic specificity.
